[Wisconsin Retiree]

Yes, winterize and I whole heartedly agree with installing shut offs for each washer line to avoid the stagnant water issue. Consider I winter south and upon return in spring I had previously planned on installing shut off valves but never got around to it. Once I cut those lines and the remaining water that trickled out on me while installing the new shut offs was absolutely rank... immediate shower and change of clothes. NOTE: I regularly flush my fresh water tank and lines with bleach mixture twice yearly and those lines were still stinking...